Following your doctor’s instructions is the most important part of preparing for a blood test. Sleeping well, staying hydrated, and avoiding certain foods and drinks can also provide benefits. Blood ...

Recent research suggests that blood tests may show markers of oral cancer. But a blood test isn’t enough to confirm an oral cancer diagnosis. A biopsy is the only way to confirm it. Blood tests for ...

A personalized blood test known as a circulating tumor DNA (ctDNA) test—which detects tiny fragments of cancer DNA circulating in the bloodstream—may help identify liver cancer recurrence earlier in ...

A pioneering trial has begun to assess whether a simple finger-prick blood test could offer an early diagnosis for Alzheimer’s disease, even before symptoms manifest. Experts are optimistic that this ...